Sure thing. However, Kano route spoilers. From Kano’s route we saw that Yukito was able to use his Houjutsu for something other than moving a doll around. He had somehow saved her. Here in Misuzu’s route we see that Yukito is able to use his Houjutsu for something other than moving the doll around (Kano) as well, just as with Kano, it seems to save Misuzu, however (Kano) this time Yukito disappears.
What I meant by “other” power, which should have been worded differently, was that Yukito is able to do things other than moving a doll around with his Houjutsu, and it seems to be some sort of exchange.
It is that aspect of his power that I am referring to in the key point.